When the daily average relative humidity was in the range of 15%-28%, the outpatient visit frequency increased gradually with the decrease of relative humidity, and the outpatient visit frequency of COPD patients increased by 37.05% for every 1% decrease of relative humidity. A synergistic effect was found between air temperature and relative humidity on chronic obstructive pulmonary disease, that is, under different relative humidity, the effect of air temperature was different. When the daily average relative humidity ? 50% and the daily average temperature?11 °C, the effect of air temperature was the most obvious. For every 1 °C drop in temperature, the daily out-patient visit frequency of the whole population increased by 12.68% (5.62% in males and 7.56% in females; 5.24% in population 50%, temperature ?11 °C) can both increase the risk of outpatient visit in chronic obstructive pulmonary disease patients.OBJECTIVE To analyze how governments, hospitals and information technology(IT) companies use Internet technology to provide online health services during the early stage of corona virus disease 2019 (COVID-19) epidemic in January 2020 in China, and then provide suggestions and coping strategies for the later stage and post-epidemic time. METHODS We searched for information on ehealth services related to the outbreak of COVID-19 in China. The sources of information were mainstream search engines such as Baidu and the popular interactive social platforms such as Webchat. The keywords were "Internet+pneumonia", "Internet clinic", "pneumonia online clinic" and so on. The time of information was from January 20 to February 3, 2020. The key information was extracted and encoded by two persons back-to-back. The coding information included name of organization provider, launching time, location of provider, service items, user, health workers engaging in the service, and so on. The coded information was entered and anced. There are institutional and technical feasibilities for the emergency application of Internet technology. However, community health centers seldom provide ehealth or connect with tertiary hospitals with Internet. Therefore, all kinds of providers within healthcare system should promote emergence ehealth. Tele-medical diagnosis and referral should be developed by local governments during COVID-19. The application of "Internet+medical treatment" in community medical institutions and synergy among various institutions should be promoted.OBJECTIVE To explore the effect of multi-disciplinary team (MDT) in general hospitals on severe trauma patients. METHODS This study reviewed the treatment of patients with severe trauma in trauma center of Peking University People's Hospital from March 2017 to April 2019. The baseline information the patients' gender, age, injury mechanism, etc.; the start indicators the Glasgow coma scale (GCS), trauma index (TI), injury severity score (ISS); the start related indicators time for activation, time for MDT to arrive, time for CT scan, time for damage control surgery; patient treatment and prognosis ICU (intensive care unit) length of stay, number of cured and discharged patients, number of dead cases, number of patients transferred to rehabilitation hospital, were all analyzed. https://www.selleckchem.com/products/hc-030031.html It discussed the composition of MDT, the initiation scheme, the indicators of initiation of MDT for severe trauma, and analyzed the correlation between the application of MDT and the prognosis of patients. RESULTS From March 2017 to Aprent of severe trauma especially multiple trauma patients in large general hospitals, and improve the treatment effect of severe trauma patients. It provides a reference model for large general hospitals to treat patients with severe trauma and multiple trauma and for the construction of trauma centers.OBJECTIVE To retrospectively analyze the risk factors of avascular necrosis of femoral head (ANFH) after internal fixation in young and mid-aged adults. METHODS From January 2007 to December 2017, femoral neck fracture patients (18-60 years old) treated by reduction and internal fixation were retrospectively studied in Peking University Third Hospital. We recorded their gender, age, body mass index (BMI), American Society of Anesthesiology (ASA) grade, reason of injury, fracture side, interval between injury and surgery, location of fracture line, Garden classification, Pauwels classification, reduction method (open or closed), internal fixation and reduction quality. The diagnosis of ANFH was confirmed based on X-ray and MRI images during the follow-up. The internal fixation method included cannulated compression screw (CCS) or dynamic hip screw (DHS, with or without anti-rotation screw). χ2 test and Logistic regression analysis were used to analyze the relationship between the various factors and postoperatincidence rate was 15.93% (18/113). The result of χ2 test showed the reason of injury (OR=0.19, P less then 0.01), Garden classification (OR=0.13, P less then 0.01), Pauwels classification (OR=0.12, P = 0.02), internal fixation method (OR=3.29, P = 0.04) and reduction quality (OR=0.33, P less then 0.01) were significantly associated with ANFH. These five factors were further included into the Logistic regression analysis, and its results showed that the reason of injury (OR=4.11, P = 0.03) and Garden classification (OR=4.85, P = 0.04) were statistically significant. CONCLUSION The reason of injury, Garden classification, Pauwels classification, internal fixation and reduction quality may increase the risk of ANFH after surgery, and the reason of injury and Garden classification were much more significant.OBJECTIVE To investigate anxiety and/or depression status of patients with chronic lumbocrural pain, and to further analyze related risk factors of anxiety and/or depression . METHODS Retrospective analysis of the medical data of patients who suffered from chronic lumbocrural pain caused by lumbar disc herniation and/or lumbar spinal stenosis and received minimally invasive surgery from March 2018 to April 2018. General data (including age, gender, education levels, past history, sleep order and medical insurance), numeric rating scale(NRS), Japanese Orthopedic Association(JOA) back pain scale and hospital anxiety and depression scale(HADS) were collected for analysis. The basic demographic data and clinic data were analyzed, possible related risk factors associated were analyzed by univariate analysis, and multivariate Logistic regression analysis was further used to find the relative independent risk factors and included all the predictive variables with P values less than 0.05 as covariates. RESULTS A total of 91 patients met the inclusion criteria and finished this study, the mean HADS score for anxiety was 8.